Canola Seeding Depth and Row Spacing. 1  Canola seeds are small, and careful placement at a relatively shallow depth is required. 2  Best germination and emergence occur at 1/2 to 1 inch under conditions of good soil moisture.  Canola has difficulty emerging from crusted soil.
Serotonin plays a role in many brain processes, including body temperature regulation, sleep, mood, appetite, and pain. Problems with the serotonin pathway are linked to obsessive-compulsive disorder, anxiety disorders, and depression.he Dopamine Pathways. Dopamine is the neurotransmitter used by the reward pathway (also called the mesolimbic pathway, which is closely linked with the mesocortical pathway).
Activation of 5-HT2 receptors seems to cause serotonin to have an excitatory effect on some neurons. LSD prevents this action, thus having an antagonistic effect on the 5-HT2 serotonin system (12). However, even within this theory there are problems.rolonged use of MDMA results in destruction of serotonergic neurons in the brain (4, 5). Because of the similarities between ecstasy 'trips' and LSD 'trips,' it can be concluded that they must activate a similar pathway, i.e. the serotonergic pathway. Several theories of the mechanism of LSD have been postulated.